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A Ring Main Unit (RMU) is a critical switching device in ring network power supply systems. It refers to the switchgear installed on each distribution branch, whose busbars form part of the ring-shaped main line simultaneously. A complete ring distribution network is established by connecting t...

1.Basic Definition of Solid-State Ring Main Unit The solid insulated switchgear is fully named the solid insulated ring main unit. And our Derui Electric Company is a manufacturer of solid insulated switchgear that adopts epoxy resin and other solid insulating materials.It fully encapsulates ...

The SF₆ gas-filled cabinet, also known as SF₆ gas-insulated metal-enclosed switchgear, has its core feature of integrating key electrical components such as SF₆ circuit breakers, SF₆ load switches, vacuum interrupters, and SF₆ voltage transfor...

Environmental protection cabinet is an electrical equipment cabinet with environmental protection features, mainly used in high-voltage ring main units, medium-voltage switchgear, and high-low voltage power distribution systems. Its core is to optimize m...

On December 4, 2025, Power Grid 2025 Moscow International Power Grid Technology Exhibition, co-hosted by the Russian Ministry of Energy and the All-Russian Power Supply Company, concluded successfully at the Timiryazev Exhibition Center. As the larges...

On November 20, 2025, the three-day 32nd China International Electric Power Equipment and Technology Exhibition (EP Exhibition 2025) concluded successfully at the Shanghai New International Expo Center. China Derui Electric Co., Ltd. showcased its cor...